Fireproof lining.



FRANCIS OSCAR WERTHER, OF SYDNEY, NOVA SCOTIA, CANADA.

FIREPRQOF LINING.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed March 25- 1907. Serial N0. 364,209.

To all whom it may concern:

Be it known that I, FRANCIS OSCAR WER- THER, a citizen of the United States of America, and resident of 32 Ne )eau street, in the city of Sydney, in the rovince of Nova Scotia, in the Dominion of Canada, have invented certain new and useful Improvements in a Fireproof Lining for Stoves or Furnaces, of which the following is a specification.

My invention relates to improvements in fire-proof lining for stoves or furnaces, and

the object of the invention is to rovide a lining, which will not be affected y the in- I add to the magnesia and chrome ore, silica,

fire cla open hearth basic slag, blast furnace slag, 0 d fire brick, salt and flour and all of these materials are brought to a granulated or powdery state and thoroughl mixed. Then I add water preferably containing molasses or any other carbonaceous matter to the mixture composed of the aforesaid ingredients and work the whole into a plastic state. In the mixing of this compound, the ingredients are usedin or about the following proportions :Magnesite containing about 80.75 magnesia 60%, fire clay 20%, chrome ore 5%, silica 5%, blast furnace slag 5%, basic steel slag 5%, old fire brick 5%, salt (chloride of sodium) 1%, cement (Sydney or Portland) 1%. The magnesite preferably contains about 80.75 magnesia. The compound is thcn ready to be applied to the interior walls of thcstovo or to the backs of doors or any other part through which the heat from the fire is not intended to radiate. Any suitable method of retaining the compound so applied in a stove or furnace may e used, the salient feature of the invention being the particular mixture and the ap lication thereof to stoves or furnaces or ot 1er surfaces which it is desired to make refractory to intense heat.

What I claim as my invention is:

I. A fire-proof lining for stoves or furnaces, consisting of magnesia, chrome ore, fire clay, slag and salt in or about the proportions named, all separated into small particles and thoroughly mixed and worked into a plastic state with the addition of water and a carbonaceous matter in said water, substantially as described.

2. A fire-proof lining for stoves or furnaces, consisting of magnesia, chrome ore, silica, fire clay, open hearth basic slag and salt in or about the proportions named, all separated into particles and thoroughl mixed and worked into a plastic state with the addition of water and a suitable carbonaceous substance, substantially as described.

3. A fire-proof lining for stoves or furnaces, consisting of magnesia, chrome ore, silica, fire clay, open hearth basic slag, blast furnace slag, old fire brick, salt and flour in or about the proportions named, all separated into particles and thoroughly mixed and worked into a plastic state with the addition of water and a carbonaceous matter, substantially as described.

4. A fire-proof lining for stoves or furnaces, consisting of magnesia, chrome ore, silica, fire clay, open hearth basic slag, blast furnace slag, old fire brick, salt and flour in or about the proportions named, all ground and thoroughly mixed and water and molasses added to said ingredients and the whole worked into a plastic state and allowed to cool, substantially as described.

5. A fire-proof lining for stoves or furnaces, consisting of magnesia, chrome ore, silica, fire clay, open hearth basic slag, blast furnace slag, old fire brick, salt and flour in or about the proportions named, separated into small. particles and thoroughly mixed and moistened with water and worked into a. plastic state, substantially as described.

Signed at the city of Sydney, in the Province of Nova Scotia, in the Dominion of Canada, this 18th day of March 1907.

FRANCIS OSCAR WERTI-IER.

Witnesses:

ROM. 0. CALLAGHAN, TnoMAs WM. PUBLICOVER. 

